CN1697782A - Light calcium carbonate, method for production thereof and loading material for loading into paper - Google Patents

Light calcium carbonate, method for production thereof and loading material for loading into paper Download PDF

Info

Publication number
CN1697782A
CN1697782A CNA2004800000434A CN200480000043A CN1697782A CN 1697782 A CN1697782 A CN 1697782A CN A2004800000434 A CNA2004800000434 A CN A2004800000434A CN 200480000043 A CN200480000043 A CN 200480000043A CN 1697782 A CN1697782 A CN 1697782A
Authority
CN
China
Prior art keywords
calcium carbonate
paper
light calcium
loading
slaked lime
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2004800000434A
Other languages
Chinese (zh)
Other versions
CN100379683C (en
Inventor
山下一夫
下野和久
河津徹
高野达夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Okutama Kogyo Co Ltd
Original Assignee
Okutama Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Okutama Kogyo Co Ltd filed Critical Okutama Kogyo Co Ltd
Publication of CN1697782A publication Critical patent/CN1697782A/en
Application granted granted Critical
Publication of CN100379683C publication Critical patent/CN100379683C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/14—Pore volume

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)

Abstract

Carbon dioxide containing gas is blown into a calcium hydroxide slurry having a calcium hydroxide concentration of 100 to 400 g/L obtained by wet slaking calcined lime with 4 N hydrochloric acid activity (value at 3 minutes) of 150 to 400 mL to allow them to react until the carbonation rate becomes 50 to 85%, then 1 to 20% by volume of the calcium hydroxide slurry is added, and carbon dioxide containing gas is further blown in to terminate the reaction. The calcium carbonate obtained by this method is precipitated calcium carbonate aggregates having a secondary particle diameter of 1 to 10 m and consisting of primary particles having a long diameter of 0.5 to 3.0 m, a short diameter of 0.1 to 1.0 m and an aspect ratio of less than 3, has superior characteristics due to a BET specific surface area in the range of 8 to 20 m 2 /g and a pore volume in the range of 1.5 to 3.5 cm 3 /g, can be uniformly dispersed in pulp fiber, and thereby can be used to manufacture high bulk paper.

Description

Light calcium carbonate, its manufacture method and use its system loading material for loading into paper
Technical field
The present invention relates to suitable light calcium carbonate and manufacture method thereof as the system loading material for loading into paper, particularly relate to suitable make loose density high in fill out the lime carbonate aggregate of paper.
Background technology
In the past, for whiteness, opaqueness, the printing adaptability that improves paper, using the mineral filler of kaolin, talcum, lime carbonate etc. as the system filler for paper.Along with the neutralisation of paper, use light calcium carbonate mostly, the optical characteristics and the printing adaptability of the whiteness when using it in order to improve, opaqueness etc. are developed the goods of controlling calcium carbonate particles shape, particle diameter etc.In addition, in recent years,, be the paper of the lightweight requirements high bulk density that obtains paper except the rerum natura of the optical characteristics of paper and surface strength etc.As the method that the loose density of paper is improved, the scheme that the main loose density that proposes paper stock improves for example, has the loose density as the paper pulp of raw material itself is increased, it is high perhaps to make loose density with ammonia liquor pulp treatment fiberboard, or paper pulp is copied paper etc. with foam particle.In addition, though be minority, also have and attempt to improve the method for the loose density of paper by filling out filler in paper in improveing.
For example, in patent documentation 1, put down in writing the high bulk density neutralized paper that uses hollow spheres vaterite (vaterite) the type lime carbonate of particle diameter 0.5～30 μ m as filler, such hollow spheres vaterite lime carbonate is in the presence of amylalcohol calcium chloride and yellow soda ash to be reacted and (being called prior art 1) of manufacturing.
In addition, in patent documentation 2, put down in writing in the slurries of the mineral particle that contains kaolin, lime carbonate, titanium dioxide etc., add the polymkeric substance or the multipolymer that contain the high-molecular weight carboxyl, composite minerals pigment with the cotton-shaped cohesion of mineral particle, this composite minerals pigment loose density height has 0.50～1.10cm 3The suitable pore volume of/g as compaction material, gives high scattering of light and opacity (below, be called prior art 2).In addition, the applicant also proposes to make suitable light calcium carbonate aggregate as system paper with pigment, the lime carbonate aggregate of median size 1.5～10 μ m that form by the lime carbonate of primary particle size 0.05～0.5 μ m and manufacture method (patent documentation 3) thereof (below, be called prior art 3).
Patent documentation 1: the spy opens flat 3-124895 communique
Patent documentation 2: the spy opens flat 7-503027 communique
Patent documentation 3: the spy opens flat 3-14696 communique
; in prior art 1, prior art 2; when making lime carbonate; need amylalcohol, contain the organism of the polymkeric substance etc. of carboxyl; be difficult to be suitable for the problem that also exists manufacturing cost to improve in addition for the general lime carbonate manufacturing installation that in the slaked lime slurries, is blown into carbon dioxide containing gas manufacturing light calcium carbonate.On the other hand, in the method for prior art 3, though can workmanship stable calcium carbonate aggregate with common lime carbonate device, the lime carbonate aggregate that produces with the cubes particle as primary particle, the little problem of BET specific surface area so there is the density height.
Therefore, the object of the present invention is to provide the lime carbonate aggregate, available precipitator method manufacturing, as primary particle, BET specific surface area, pore volume are big with spindle shape particle.In addition, the object of the present invention is to provide loose density high in fill out paper, be to use above-mentioned lime carbonate aggregate to make.
Summary of the invention
In order to solve above-mentioned prior art problems, the condition of present inventors when being blown into carbon dioxide containing gas making light calcium carbonate in the slaked lime slurries carried out with keen determination result of study and found, when using high density slaked lime slurries as raw material, carbonation reaction is divided into 2 stages to carry out under defined terms, can obtain major diameter 0.5～3.0 μ m, minor axis 0.1～1.0 μ m, the lime carbonate aggregate of the even cotton-shaped cohesion of primary particle of long-width ratio less than 3, in addition, the lime carbonate aggregate of such shape is extremely good for the dispersiveness of paper pulp fiber, and be effectively, thereby finish the present invention for the loose density that improves paper.
That is, light calcium carbonate of the present invention be with the cotton-shaped cohesion of primary particle of major diameter 0.5～3.0 μ m, minor axis 0.1～1.0 μ m, long-width ratio less than 3, aggregate particle size is the light calcium carbonate of 1～10 μ m, its BET specific surface area is 8～20m 2/ g, pore volume are at 1.5～3.5cm 3/ g scope.
In addition, the manufacture method of light calcium carbonate of the present invention, be after in the slaked lime slurries of slaked lime concentration 100～400g/l, being blown into carbonic acid gas or carbon dioxide containing gas and being reacted to carbonating rate 50～85%, add the above-mentioned slaked lime slurries of 1～20 capacity %, and then being blown into the end reaction of carbonic acid gas or carbon dioxide containing gas, above-mentioned slaked lime slurries are by WET DIGESTION the unslaked lime that 4N hydrochloric acid activity degree (3 score value) is adjusted to 150～400ml to be obtained.
And then, the invention provides the system loading material for loading into paper that contains such light calcium carbonate and contain it in fill out paper.
Below, describe light calcium carbonate of the present invention and manufacture method thereof in detail.
The unslaked lime of the raw material of making as light calcium carbonate can use bulk or powdered unslaked lime behind the calcined limestone, particularly use with 4N hydrochloric acid activity degree 3 score values adjust to 150～400ml, 200～350ml preferably.Said 4N hydrochloric acid activity degree is meant the value by the coarse grain titration measuring of reactivity test method, specifically with the unslaked lime particle 50g of particle diameter 1～3mm in 2 premium on currency, 40 ℃ down with 4N hydrochloric acid Continuous Titration, the value of representing with the consumption (ml) of the 4N hydrochloric acid of 3 fens clock times.During 4N hydrochloric acid activity degree 3 score values deficiency 150ml, the yield of lime carbonate reduces, and its size-grade distribution is disperseed easily.In addition, if when surpassing 400ml,, exist in to carry and go up and the temperature problems such as needing cooling that rises during reaction because viscosity is too high.
Water is made the slaked lime slurries with such unslaked lime WET DIGESTION.At this moment, make the slaked lime concentration of slurries reach 100～400g/l, 150～200g/l preferably.Make such high concentration range by slaked lime concentration, in following carbonation reaction, can suppress cubical particle and generate, make spindle shape, grain of rice shape or acicular crystallization easily the slaked lime slurries.In addition, initial reaction stage can add a part by carbonating the slaked lime slurries, thus, can suppress the particle diameter of particle easily.A part by carbonating the slaked lime slurries, preferably add the waterborne suspension of the colloidal particle calcium hydroxide of carbonating rate 10～50%, being converted into calcium hydroxide is 5～30 weight %.A part by carbonating the slaked lime slurries, initial reaction stage can be added carbonating rate 50% to particularly.
Carbonation reaction divides following 2 stages,, is reacted to the 1st stage of carbonating rate 50～85% that is, after the 1st stage, and then adds slaked lime slurry reaction the 2nd stage to the end.In the reaction in the 1st stage, 30～70 ℃ of temperature of reaction beginning, preferably under 50～60 ℃ in above-mentioned slaked lime slurries, with CO than higher concentration 2Measure 1～20 liter/minute, preferably 7～12 liters/minute be blown into carbonic acid gas or carbon dioxide containing gas (below, be referred to as carbon dioxide containing gas).As carbon dioxide containing gas, can utilize the exhaust of the exhaust etc. of Wingdale firing furnace, electricity generation boiler, incinerator, preferably the content of carbonic acid gas is more than 15%.By with high slaked lime concentration in the reaction of carrying out the 1st such stage than higher temperature, the reactivity of calcium hydroxide and carbon dioxide containing gas is uprised, the nuclear of the calcium carbonate particles that mostly occurs greatly in the 1st stage generates aggregated particle easily.The reaction in the 1st stage proceeds to carbonating rate 50～85%.The carbonating rate is meant the weight (%) of lime carbonate for the total of the weight of the weight of the calcium hydroxide in the reaction solution and lime carbonate, and for example by the sampling reaction solution, the end of a period that can determine for the 1st stage constantly.For carbonating rate less than 50%, the product nucleus of aggregate not exclusively is difficult to generate aggregate.In addition, die down, the dispersion in system paper operation, apply, copy paper etc. and in addition make the aggregate disintegration easily in the operation of shearing force if the carbonating rate surpasses the aggegation of the aggregate in 85%, the 2 stage.
After the reaction in the 1st stage ends, in its reaction solution and then add above-mentioned slaked lime slurries, be blown into carbon dioxide end of a period carbonation reaction.The reaction in the 2nd stage begins temperature and makes 55～65 ℃, and the carbon dioxide amount of being blown into is made as 7～12 liters/minute.In addition, the amount of the slaked lime slurries of interpolation is 1～20%, preferably 3～10% of a reaction solution.Like this by adding the slaked lime slurries in the 2nd stage, the calcium carbonate crystal of growing up on the nuclear of the aggregate that generates in the 1st stage can generate the comparison homogeneous particle diameter, and pore volume is big, and is difficult to the cotton-shaped aggregate of disintegration.
The lime carbonate (aggregate) that generates, powdered is made in classification as required, dehydration.Dehydration can be adopted known mechanical dehydration methods such as centrifuge dehydration, pressurizing and dehydrating.
The lime carbonate that is obtained by manufacture method of the present invention is the cotton-shaped aggregate of the primary particle of major diameter 0.5～3.0 μ m, minor axis 0.1～1.0 μ m, long-width ratio less than 3, and aggregate particle size is 1～10 μ m.Surface-area, the pore volume of this cotton-shaped aggregate are big, and the BET specific surface area is 8～20m particularly 2/ g, the pore volume of mercury penetration method is 1.5～3.5cm 3/ g.Preferably the BET specific surface area is 10～15m 2/ g, pore volume is 1.8～2.5cm 3/ g.
Lime carbonate aggregate of the present invention like this can be used for making the purposes of filler for paper and other general mineral dye, but when particularly being added in the paper pulp fiber, but homodisperse, adhere to, has physical strength height for fingerprinting stress, so the speciality that loose density is high is suitable to the system loading material for loading into paper.
Lime carbonate of the present invention can similarly use with system loading material for loading into paper in the past, for example, in the paper stock slurries that contain paper pulp, thickener etc., adiabatic drying weight 100 weight parts of pulpwood are added 5～50 weight parts, 10～30 weight parts preferably, copy paper with the common paper method of copying, just can obtain filling out paper in of the present invention.Fill out paper in of the present invention, owing to use as loading material for loading into, its surface-area, pore volume are big, and dispersed good lime carbonate aggregate is so the high paper force intensity of loose density is also good.In addition, the optical characteristics of whiteness, opaqueness etc. is also good.
Embodiment
Below, illustrate lime carbonate of the present invention manufacture method and in fill out the embodiment of paper.
Embodiment 1
The lump lime of water WET DIGESTION hydrochloric acid activity degree (3 score value) 300ml is adjusted to the slaked lime slurries of slaked lime concentration 149g/l.Then, these slaked lime slurries are joined in the Reaktionsofen, 55 ℃ of bottoms are blown into carbon dioxide containing gas (CO with 10 liters/minute in reaction beginning temperature 2Concentration 30%) react on the limit.The carbonating rate reaches at 75% o'clock, stops the supply of carbon dioxide containing gas, and stopped reaction adds the slaked lime slurries of the slaked lime concentration 100g/l of the 10 weight % that are equivalent to reaction solution in reaction solution.
After mixing the slaked lime slurries, and then, be blown into carbon dioxide containing gas, under 61 ℃ of reaction beginning temperature, carry out the reaction in the 2nd stage.After the reaction, the dehydration classification obtains lime carbonate.When using electron microscope, laser particle size analysis device and powder X-ray line diffraction instrument to observe the form of this lime carbonate, be confirmed to be the aggregate of the cotton-shaped cohesion of spindle shape primary particle.In addition, when measuring particle diameter with digital vernier scale, the median size of primary particle, major diameter is that 1.0 μ m, minor axis are 0.2 μ m, the median size of aggregate is 4.5 μ m.
Embodiment 2
The lump lime of water WET DIGESTION hydrochloric acid activity degree (3 score value) 300ml is adjusted to the slaked lime slurries of slaked lime concentration 149g/l.Then, these slaked lime slurries are joined in the Reaktionsofen, 35 ℃ of bottoms are blown into carbon dioxide containing gas (CO with 10 liters/minute in reaction beginning temperature 2Concentration 30%) react on the limit.The carbonating rate reaches at 75% o'clock, stops the supply of carbon dioxide containing gas, stopped reaction, the slaked lime slurries of the slaked lime concentration 149g/l of 10 weight % of interpolation reaction solution in reaction solution.
Then, carry out the reaction in the 2nd stage in the same manner, obtain lime carbonate with embodiment.When using electron microscope, laser particle size analysis device and powder X-ray line diffraction instrument to observe the form of this lime carbonate, be confirmed to be the aggregate of the cotton-shaped cohesion of spindle shape primary particle.In addition, when measuring particle diameter with digital vernier scale, the median size of primary particle, major diameter is that 0.8 μ m, minor axis are 0.15 μ m, the median size of aggregate is 4.6 μ m.
Comparative example 1
Carry out the carbonation reaction in the 1st stage in the same manner with embodiment 2, the carbonating rate becomes respectively at 45% o'clock, stop the supply of carbon dioxide containing gas, stopped reaction, the slaked lime slurries of the slaked lime concentration 149g/l of 10 weight % of interpolation reaction solution in reaction solution, and then, be blown into carbon dioxide containing gas, under 35 ℃ of reaction beginning temperature, carry out the reaction in the 2nd stage.After the reaction, the dehydration classification obtains lime carbonate.The form of using electron microscope, laser particle size analysis device and powder X-ray line diffraction instrument to observe this lime carbonate.
Comparative example 2,3
Carry out the carbonation reaction in the 1st stage in the same manner with embodiment 1, the carbonating rate becomes 45%, 91% and respectively at 100% o'clock, stop the supply of carbon dioxide containing gas, stopped reaction, the slaked lime slurries of the slaked lime concentration 100g/l of 10 weight % of interpolation reaction solution in reaction solution, and then, be blown into carbon dioxide containing gas, under 61 ℃ of reaction beginning temperature, carry out the reaction in the 2nd stage.After the reaction, the dehydration classification obtains lime carbonate.The form of using electron microscope, laser particle size analysis device and powder X-ray line diffraction instrument to observe this lime carbonate.
For the lime carbonate that obtains by embodiment 1,2 and comparative example 1～3, measure following rerum natura respectively.Its result is illustrated in the table 1 with the observations of above-mentioned electron microscope.
1.BET specific surface area (m 2/ g): use Flow Sorb II 2300 (Micromeritics society systems) to measure.
2. meso-position radius (μ m): use laser diffraction/diffuse transmission type particle size distribution device (LA-920: an institute is made in pick) to measure.
3. pore volume: use TriStar 3000 (Micromeritics society system) to measure.
4. the coherency of particle: use electron micrograph to observe, in the scope of photography 3500 multiplying powers, with the cotton-shaped cohesion of spindle shape primary particle exist rate more than 90% as ◎, more than 70% as more than zero, 50% as △, less than 50% as *.
5. particle distribution constitutes: use the laser diffraction granularity distribution apparatus to observe, with particle diameter 3 μ m～9 μ m frequency be more than 80% as ◎, more than 70% as more than zero, 50% as △, less than 50% as *.
Table 1
Embodiment 1 Embodiment 2 Comparative example 1 Comparative example 2 Comparative example 3
BET specific surface area (m 2/g) ??12.1 ??17.1 ??20.3 ??7.8 ??6.1
Meso-position radius (μ m) ??4.5 ??4.6 ??2.7 ??5.7 ??5.6
Pore volume (cc/g) ??2.3 ??2.4 ??1.8 ??1.3 ??0.8
Particle coacervation ??◎ ??○ ??△ ??△ ??×
The formation of particle distribution ??◎ ??○ ??△ ??△ ??○
From the result of table 1 as can be seen, the coherency of the calcium carbonate particles of present embodiment is good, and BET specific surface area, pore volume are also all big.
Embodiment 3,4, comparative example 4～6
The lime carbonate that uses embodiment 1,2 and comparative example 1～3 to obtain is respectively copied paper material according to following formulated.These are copied paper material in square plate machine, under 3.5kg/cm, 3 minutes condition with the about 63g/m of level ground amount 2Copy paper, 95C dry 3 minutes down, and filled out paper in obtaining.
＜copy paper material 〉
Paper pulp (LBKP) 100%
Lime carbonate 15%
Alumina 0.50%
Cationic starch 0.50%
Sizing agent (AKD) 0.10%
Yield rising agent (PAM) 0.02%
Filling out the papery of paper and the rerum natura result of mensuration in each that obtains is illustrated in the table 2.In addition, the papery of table 2 (level ground amount, ash content, paper are thick, density, length of fracture, degree of sizing) is measured according to JIS respectively.In addition, whiteness is measured according to JIS P8136 according to ISO3688, opaqueness.
Table 2
Embodiment 3 Embodiment 4 Comparative example 4 Comparative example 5 Comparative example 6
Level ground amount (g/m 2) ??63.8 ??63.6 ??63.5 ??63.3 ??63.2
Ash content (%) ??15 ??15 ??15 ??15 ??15
Paper thick (μ m) ??134 ??135 ??132 ??131 ??126
Density (g/m 3) ??0.476 ??0.471 ??0.481 ??0.483 ??0.502
Degree of sizing (sec) ??23 ??21 ??5 ??18 ??25
Length of fracture (km) ??3.22 ??3.19 ??2.92 ??3.23 ??3.48
Whiteness (%) ??88.4 ??88.6 ??87.9 ??87.5 ??87.2
Opaqueness (%) ??91.1 ??91.3 ??90.6 ??89.7 ??89.1
Result as table 2 shows, according to the present invention, even identical ash content, with comparative example relatively, fill out paper in can obtaining that paper is thick, density is low, loose density is high.And, fill out paper in the present embodiment, the rerum natura with or physical strength it more than identical with comparative example and whiteness, opaqueness etc. is good.
According to the present invention, when using the slaked lime slurries of high density as raw material, the 1st stage by carbonation reaction being proceeded to high carbonating rate and and then add the formation in the 2nd stage that the slaked lime slurries react, BET specific surface area, lime carbonate aggregate that pore volume is big can be provided.Use such lime carbonate aggregate can obtain whiteness, the high paper of loose density that opaqueness is good.

Claims (7)

1. light calcium carbonate, its be with the cotton-shaped cohesion of primary particle of major diameter 0.5～3.0 μ m, minor axis 0.1～1.0 μ m, long-width ratio less than 3, aggregate particle size is the light calcium carbonate of 1～10 μ m, its BET specific surface area is 8～20m 2/ g, pore volume are at 1.5～3.5cm 3/ g scope.
2. the manufacture method of a light calcium carbonate, after it is characterized in that in the slaked lime slurries of slaked lime concentration 100～400g/l, being blown into carbonic acid gas or carbon dioxide containing gas and being reacted to carbonating rate 50～85%, add the described slaked lime slurries of 1～20 capacity %, and then being blown into carbonic acid gas or carbon dioxide containing gas end of a period reaction, wherein said slaked lime slurries are by WET DIGESTION the unslaked lime that 4N hydrochloric acid activity degree (3 score value) is adjusted to 150～400ml to be obtained.
3. light calcium carbonate, it is made with the described method of claim 2.
4. light calcium carbonate according to claim 3, its BET specific surface area is 8～20m 2/ g, pore volume are at 1.5～3.5cm 3/ g scope.
5. make loading material for loading into paper for one kind, it is to contain any one described light calcium carbonate in the claim 1,3,4.
6. fill out paper in one kind, it is to contain the described loading material for loading into of claim 5.
7. fill out paper in one kind, it is the described loading material for loading into of claim 5 that contains 5～50 weight parts for pulpwood 100 weight parts.
CNB2004800000434A 2003-06-05 2004-06-03 Light calcium carbonate, method for production thereof and loading material for loading into paper Expired - Lifetime CN100379683C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP161141/2003 2003-06-05
JP2003161141 2003-06-05

Publications (2)

Publication Number Publication Date
CN1697782A true CN1697782A (en) 2005-11-16
CN100379683C CN100379683C (en) 2008-04-09

Family

ID=33508597

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004800000434A Expired - Lifetime CN100379683C (en) 2003-06-05 2004-06-03 Light calcium carbonate, method for production thereof and loading material for loading into paper

Country Status (8)

Country Link
US (1) US8017101B2 (en)
EP (1) EP1637501A4 (en)
JP (1) JP4571583B2 (en)
KR (1) KR101094545B1 (en)
CN (1) CN100379683C (en)
BR (1) BRPI0411272A (en)
RU (1) RU2344078C2 (en)
WO (1) WO2004108597A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100450932C (en) * 2006-11-24 2009-01-14 清华大学 Nm-class calcium carbonate carbonization process
CN101541682B (en) * 2006-11-30 2012-06-20 奥多摩工业株式会社 Lightweight calcium carbonate, process for producing the same, and printing paper containing the same
CN106133242A (en) * 2014-03-27 2016-11-16 日本制纸株式会社 Inside it is filled with the paper of flap build precipitated calcium carbonate
CN106398312A (en) * 2011-10-05 2017-02-15 索尔维公司 Precipitated calcium carbonate particles and use thereof
TWI602782B (en) * 2015-07-31 2017-10-21 歐米亞國際公司 Precipitated calcium carbonate with improved resistance to structural breakdown
CN107555459A (en) * 2017-09-13 2018-01-09 泰兴市诚盛化工有限公司 A kind of preparation method of nanometer of spindle winnofil
CN108101090A (en) * 2017-12-27 2018-06-01 上海碳酸钙厂有限公司 A kind of preparation method of aciculiform winnofil
CN110540226A (en) * 2019-10-07 2019-12-06 浙江省建德市正发药业有限公司 preparation method of high-density calcium carbonate powder

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4792758B2 (en) * 2005-02-02 2011-10-12 日本製紙株式会社 Low density paper
CN1303286C (en) * 2005-06-20 2007-03-07 上海东升新材料有限公司 Calcium carbonate cladded paper pulp fiber, its preparation method and application in paper making
CN100341786C (en) * 2006-06-08 2007-10-10 上海东升新材料有限公司 Monodispersion cubic light calcium carbonate and its preparation method and application
JP4743105B2 (en) * 2006-12-14 2011-08-10 王子製紙株式会社 Newspaper for cold offset printing
JP2009091180A (en) * 2007-10-05 2009-04-30 Shiraishi Calcium Kaisha Ltd Calcium carbonate having high rate of biologic absorption and method for producing the same
US20100163200A1 (en) * 2008-12-31 2010-07-01 Weyerhaeuser Company Method for making readily defibered pulp product
US20100163199A1 (en) * 2008-12-31 2010-07-01 Weyerhaeuser Company Readily defibered pulp product
JP5453135B2 (en) * 2010-02-25 2014-03-26 奥多摩工業株式会社 Highly reactive quicklime for thermal decomposition of PET and method for producing the same
FI124831B (en) * 2010-03-10 2015-02-13 Upm Kymmene Oyj Process and reactor for in-line production of calcium carbonate in a pulp flow
US9428398B2 (en) 2012-03-23 2016-08-30 Omya International Ag Process for preparing scalenohedral precipitated calcium carbonate
KR101337096B1 (en) * 2012-03-30 2013-12-06 서울대학교산학협력단 Method for manufacturing of polyelectrolyte multilayer coated inorganic filler and paper using thereof
US9422419B2 (en) * 2012-05-08 2016-08-23 Maruo Calcium Co., Ltd. Surface-treated calcium carbonate filler, and curable resin composition containing the filler
EP2786967A1 (en) 2013-04-03 2014-10-08 HF Biotec Berlin GmbH Method and facility for the production of crystalline calcium carbonate by means of the combined use of two gases with different CO2 content
RU2532189C1 (en) * 2013-04-22 2014-10-27 Федеральное Государственное Унитарное Предприятие "Государственный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Химических Реактивов И Особо Чистых Химических Веществ" Method of producing pure calcium carbonate
JP2015168912A (en) * 2014-03-10 2015-09-28 奥多摩工業株式会社 Coating liquid for coated sheet and coated sheet using the same
EP3127868B1 (en) 2014-03-31 2021-06-16 Nippon Paper Industries Co., Ltd. Calcium-carbonate-microparticle/fiber composite and manufacturing method therefor
SI3018175T1 (en) 2014-11-07 2019-05-31 Omya International Ag A process for the preparation of flocculated filler particles
TR201808701T4 (en) 2014-11-07 2018-07-23 Omya Int Ag A process for the preparation of flocculant filler particles.
JP6742867B2 (en) 2016-09-07 2020-08-19 日本製紙株式会社 Method for producing inorganic carbonate
WO2024081474A1 (en) * 2022-10-10 2024-04-18 Specialty Minerals (Michigan) Inc. Methods for production of precipitated calcium carbonate (pcc), pcc product, and uses of pcc
KR102583061B1 (en) 2022-10-27 2023-09-26 주식회사 에쓰큐씨 Paper Comprising Calcium Carbonate From the Shell and Manufacturing Method of the Same

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160597A (en) * 1978-06-09 1979-12-19 Shiraishi Kogyo Kaisha Ltd Calcium carbonate needleelike intertwined article and its manufacture
JP2567916B2 (en) * 1988-06-10 1996-12-25 奥多摩工業株式会社 Method for producing calcium carbonate aggregate
JPH0818828B2 (en) * 1989-12-26 1996-02-28 奥多摩工業株式会社 Method for producing agglomerated calcium carbonate
US5292495A (en) * 1991-05-27 1994-03-08 Kowa-Chemical Industry Co., Ltd. Porous particles of calcium carbonate and method for the preparation thereof
JPH07509684A (en) * 1992-04-03 1995-10-26 ミネラルズ・テクノロジーズ・インコーポレーテッド Clustered precipitated calcium carbonate particles
JP3874449B2 (en) * 1996-05-21 2007-01-31 奥多摩工業株式会社 Method for producing light calcium carbonate
JP3376826B2 (en) * 1996-08-21 2003-02-10 協同組合津久見ファインセラミックス研究センター Plate-like calcium carbonate-based spherical composite and method for producing the same
JP3058255B2 (en) * 1996-08-29 2000-07-04 丸尾カルシウム株式会社 Method for producing precipitated calcium carbonate
JP3726422B2 (en) * 1997-04-28 2005-12-14 日本製紙株式会社 Method for producing coated paper for offset printing
JPH115360A (en) * 1997-06-17 1999-01-12 Maruo Calcium Co Ltd Recording sheet material
AU2708799A (en) * 1998-03-23 1999-10-18 Pulp And Paper Research Institute Of Canada Method for producing pulp and paper with calcium carbonate filler
JP2000169142A (en) * 1998-12-03 2000-06-20 Maruo Calcium Co Ltd Production of calcium carbonate
JP2000212892A (en) * 1999-01-14 2000-08-02 Printing Bureau Ministry Of Finance Japan Mat coated paper for gravure printing and its production
JP3392109B2 (en) * 2000-07-04 2003-03-31 日鉄鉱業株式会社 Method for producing titanium dioxide-fusiform calcium carbonate composite particles, and composite composition and composite containing the composite particles
CN1377830A (en) * 2002-02-25 2002-11-06 杜焕光 Producing light calcium carbonate from calcium carbide waste slurry
EP1743775A1 (en) * 2005-07-13 2007-01-17 SAPPI Netherlands Services B.V. Coated paper for sheet fed offset printing

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100450932C (en) * 2006-11-24 2009-01-14 清华大学 Nm-class calcium carbonate carbonization process
CN101541682B (en) * 2006-11-30 2012-06-20 奥多摩工业株式会社 Lightweight calcium carbonate, process for producing the same, and printing paper containing the same
CN106398312A (en) * 2011-10-05 2017-02-15 索尔维公司 Precipitated calcium carbonate particles and use thereof
US10040694B2 (en) 2011-10-05 2018-08-07 Imerys Sa Precipitated calcium carbonate particles and use thereof
CN106133242A (en) * 2014-03-27 2016-11-16 日本制纸株式会社 Inside it is filled with the paper of flap build precipitated calcium carbonate
TWI602782B (en) * 2015-07-31 2017-10-21 歐米亞國際公司 Precipitated calcium carbonate with improved resistance to structural breakdown
CN107555459A (en) * 2017-09-13 2018-01-09 泰兴市诚盛化工有限公司 A kind of preparation method of nanometer of spindle winnofil
CN108101090A (en) * 2017-12-27 2018-06-01 上海碳酸钙厂有限公司 A kind of preparation method of aciculiform winnofil
CN108101090B (en) * 2017-12-27 2020-04-28 上海碳酸钙厂有限公司 Preparation method of needle-shaped precipitated calcium carbonate
CN110540226A (en) * 2019-10-07 2019-12-06 浙江省建德市正发药业有限公司 preparation method of high-density calcium carbonate powder
CN110540226B (en) * 2019-10-07 2022-05-27 浙江省建德市正发药业有限公司 Preparation method of high-density calcium carbonate powder

Also Published As

Publication number Publication date
EP1637501A4 (en) 2013-01-09
RU2344078C2 (en) 2009-01-20
KR101094545B1 (en) 2011-12-19
WO2004108597A1 (en) 2004-12-16
CN100379683C (en) 2008-04-09
JPWO2004108597A1 (en) 2006-07-20
EP1637501A1 (en) 2006-03-22
US20070169905A1 (en) 2007-07-26
RU2005141517A (en) 2006-06-10
JP4571583B2 (en) 2010-10-27
KR20060020655A (en) 2006-03-06
BRPI0411272A (en) 2006-08-01
US8017101B2 (en) 2011-09-13

Similar Documents

Publication Publication Date Title
CN1697782A (en) Light calcium carbonate, method for production thereof and loading material for loading into paper
US9981855B2 (en) Process for preparing scalenohedral precipitated calcium carbonate
DK2524898T3 (en) Process for the preparation of precipitated calcium carbonate from fiber pulp mill waste
CN1753836A (en) Spherical calcium carbonate and method for production thereof
US9708770B2 (en) Paper, paperboard, or label stock coated with fibrous structured amorphous silica including precipitated calcium carbonate
CN100545092C (en) A kind of preparation method of submicron grade superfine calcium carbonate dispersion particle
US7048900B2 (en) Method and apparatus for production of precipitated calcium carbonate and silicate compounds in common process equipment
CN101541682B (en) Lightweight calcium carbonate, process for producing the same, and printing paper containing the same
JP2008545033A (en) Method for coating cellulose particles, coated cellulose particles, and methods for their use in the manufacture of paper and cardboard
EP2798012A1 (en) Use of precipitated carbonate in the manufacture of a fibre product
CN1723314A (en) Filler-fiber composite
CN1723316A (en) Filler-fiber composite
JPH1111941A (en) Production of light calcium carbonate
JP5230135B2 (en) Calcium carbonate-silica composite material and method for producing the same
JP4074447B2 (en) Silica-calcium carbonate composite particles, production method thereof, and composite composition and composite containing the composite particles
CN101209851A (en) Method for manufacturing rice-shaped precipitated calcium carbonate
CA2382869A1 (en) Multi-phase calcium silicate hydrates, methods for their preparation, and improved paper and pigment products produced therewith
WO2005100690A1 (en) Use of calcium carbonate particles in papermaking
CN1723315A (en) Filler-fiber composite
JPH0818827B2 (en) Method for producing spindle-shaped calcium carbonate
EP1819769A1 (en) Starch acetate composites, method for the production thereof, and use in paper and board production
JP3872610B2 (en) Method for producing calcium carbonate
CN101302025A (en) Porous calcium carbonate, and preparation and application thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant